You show four cards with blue dots and another four cards with red dots. Then you stick a blue dot over a red dot card and a red dot over a blue dot card. After 5 seconds the dot color of the remaining three cards in each packet has changed, too.
You continue to mix the cards but they always separate into packs of the same color, like oil and water separate. In the final sequence, you remove the two dots you stuck on in the first phase and the colors change again magically.
1st edition 2024, video 5:46.
